Created
October 7, 2012 19:51
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Round date scale
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.axis text { | |
font: 10px sans-serif; | |
} | |
.axis path, .axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v2.min.js?2.9.6"></script> | |
<script> | |
var margin = {top: 100, right: 100, bottom: 100, left: 100}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
var data = [ | |
{date: new Date(2011,11,31), amount: 200}, | |
{date: new Date(2012,0,1), amount: 100}, | |
{date: new Date(2012,0,2), amount: 300}, | |
{date: new Date(2012,0,3), amount: 400}, | |
{date: new Date(2012,1,1), amount: 400} | |
]; | |
var month = data.filter(function (d) { return d.date.getMonth() === 0; }); | |
var x = d3.time.scale() | |
.domain(d3.extent(month, function(d) { return d.date; })) | |
.range([0, width]) | |
.nice(d3.time.month); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom") | |
.ticks(d3.time.days,7) | |
.tickFormat(d3.time.format('%b %d')); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width + margin.left + margin.right) | |
.attr("height", height + margin.top + margin.bottom) | |
.append("g") | |
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
svg.append("g") | |
.attr("class", "x axis") | |
.call(xAxis); | |
</script> |
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